ASTM D2010/D2010M - 98(2017) - Standard Test Methods for Evaluation of Total Sulfation Activity in the Atmosphere by the Lead Dioxide Technique

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ASTM D2010/D2010M - 98(2017)

Standard Test Methods for Evaluation of Total Sulfation Activity in the Atmosphere by the Lead Dioxide Technique

Status : Current   Published : May 2017

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1.1 These test methods describe the evaluation of the total sulfation activity in the atmosphere. Because of its oxidizing power, lead dioxide (PbO 2) converts not only sulfur dioxide (SO 2), but other compounds, such as mercaptans and hydrogen sulfide, into sulfate. It fixes sulfur trioxide and sulfuric acid mist present in the atmosphere (see Note 1).

1.2 Test Method A describes the use of a PbO 2 candle, and Test Method B describes that of a PbO 2 sulfation plate. 2

1.3 These test methods provide a weighted average effective SO 2 level for a 30-day interval.

1.4 The results of these test methods correlate approximately with volumetric SO 2 concentrations, although the presence of dew or condensed moisture tends to enhance the capture of SO 2 onto the candle or plate.

1.5 The values stated in SI units shall be regarded as the standard. The values given in brackets are for information only and may be approximate.

Note 1:  It has been shown that the rate constant of the chemical reaction between SO 2 and PbO 2 is independent of the concentration of SO 2 up to levels of 1000 ppm(v), if 15 % or less of the PbO 2 has been reduced ( 1). 3 15 % of the PbO 2 is equivalent to 11 to 12 mg of SO 2/cm 2 per day.

1.6  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section 8.

1.7  This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.




Standard NumberASTM D2010/D2010M - 98(2017)
TitleStandard Test Methods for Evaluation of Total Sulfation Activity in the Atmosphere by the Lead Dioxide Technique
StatusCurrent
Publication Date01 May 2017
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Atmospheres|Huey plates|Lead dioxide|Lead dioxide candles|Sampling|Sulfa tion|Sulfation plates|Sulfur dioxide
ICS13.040.20
PublisherASTM
FormatA4
DeliveryYes
Pages6
File Size145 KB
Price£40.00


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